Bump sp-keyring from 7d3ce4d to ca5f105

Bumps [sp-keyring](https://github.com/paritytech/polkadot-sdk) from `7d3ce4d` to `ca5f105`.
- [Release notes](https://github.com/paritytech/polkadot-sdk/releases)
- [Commits](paritytech/polkadot-sdk@7d3ce4d...ca5f105)

---
updated-dependencies:
- dependency-name: sp-keyring
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>